.bg {
  width: 100%;
  height: 100%;

  .board {
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -177px;
    margin-top: -177px;
    width: 356px;
    height: 356px;
    z-index: 1;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    border-radius: 3px;
    overflow: hidden;
    background: url("@/assets/images/board.jpg") no-repeat;
    background-size: 100% 100%;
  }

}
